Top-roll saddle for spinning-frames.



J. V. GUNNIFF.

TOP ROLL SADDLE FOR SPINNING FRAMES.

APPLICATION FILED 111111.20, 1912.

Patented Sept. 2, 1913.

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JOHN V. CUNNIFF, OF FALL RIVER, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JAMES K. LANNING, OF BOSTON, MASSACHUSETTS.

TOP-ROLL SADDLE FOR SPINNING-FRAMES.

Specification of Letters Patent.

Patented Sop t. 75, .i 913.

Application filed March 20, 1912. Serial No. 685,029.

To all whom it may concern Be it known that I, JouN V. (,luNNirr, a citizen of the United States, and a resident of Fall River, in the county of Bristol and State of ivl'assachusetts, have invented an Improvement in Top-Roll Saddles for Spinning-I rames, of which the following description, in connection with the aecompanying drawings, is a specification, like char actors on the drawings representing like parts.

This invention relates to top roll saddles for spinning frames.

In order that the principle of the invention may be understood, I have disclosed a single embodiment thereof in the accompanying drawing, wherein" Figure 1 is a view partly in side elevation and partly in vertical section of drawing mechanism for spinning machines embody ing my invention; Fig. 2 is a plan view of a portion of the mechanism shown in Fig. 1; and Fig. 3 is a detail of the weight strap and its support.

An important object of my invention is the provision of simple means whereby the application of pressure to the upper drawing rolls may be varied and particularly whereby the point of application of the pressure applied to the intermediate and the back set of drawing rolls may be shifted so that the amount of pressure transmitted to the intermediate drawing rolls may be varied and may be wholly or substantially wholly removed. if desired.

Referring more particularly to the drawings, the front pair of drawing rolls is represented at 1, 1. the intermediate pair at 9, 2 and the back pair at 3, 3. Said rolls may be of the usual construction and may be supported upon a standard t upon the spinning frame 5 or other suitable mechanism constituting parts of a spinning or other similar mechanism.

lretcrablv I provide a Front saddle and a baelr saddle, the former being represented at 6 as resting upon the front drawing roll '1. and the latter being represented at 7 as resting upon the intermediate and back drawing rolls 2, 3. I provide means supported by one of said saddles and extending to and preferably overlying the other saddle to apply the weight thereto. In the present embodiment of the invention, I have represented the trout saddle (3 as having adjustably threaded therein as indicated at 8, a member 3) which extends longitudinally of and overlies the back saddle, being received, if desired, within a longitudinal recess 10 formed in the upper face of said rear saddle.

Tn order to adjust the said member with respect'to the Front saddle, it is provided at its rear end with a linger piece I] '1. by which it may be readily rotated.

i provide the member 9 with a suitable device adjustable therealong and constituting means for applying pressure to the rear saddle 7, said device being adjustable in order that the point of application of the pressure to the rear saddle may be varied. To this end, T. preferably thread the member 9 as indicated at 12 and position thereon a nut 13, it being obvious that the said finger piece 11 may be made readily detachable from said men'ibcr 9 to permit the positioning of the said nut or that any other suitable provision may be made :for assembling the parts. A nut engages the wall of the longitudinal recess 10 and this frictional engagement, which is intensified by the weight strap 14 and the weight 19, is sufficient to hold the nut 13 from movement when the member 9 is rotated to adjust it in and out with respect to the front saddle member- 6. To adjust the member 9 with respect to the trout saddle member (3, it is unnecessary to lift the member 9 from the back saddle, but to adjust the nut 13 along the member 9. the latter should he lifted at its outer end 11.

The Front saddle is composed of the member 6, which is in eti'ect a stationary nut, and the threaded member 9. By rotation of the member 9 the effective length of the front saddle can be increased or shortened for the purpose of so positioning the weight strap that it will not bear against either the middie or Front feed rolls.

According to the count or fineness of the yarn that is being drawn and spun. it is necessary to change the weight applied to the intermediate pair of drawing rolls, and heretofore it has been custonmry to provide two interchangcable back saddles. one oi. which is to be used with line yarn and the other with com-seryarn. Tn accordance with my irn-ention, l am enabled to dispense with the use ol two back saddles, and by varying the point of application of the pressure to the single back saddle, I am enabled to vary the amount of weight applied to the inter mediate pair of drawing rolls, and even to remove such weight wholly therefrom. For example, when fine yarn is to be drawn and spun, the nut 13 is shifted toward the right viewing Fig. 1,- that is, away from the intermediate pair of drawing rolls, to which end the finger piece 11 may be grasped and the member 9 slightly elevated from the back saddle 7, thus permitting manipulation of the nut. By positioning the nut 13 directly over the back pair of drawing rolls, the weight may be substantially wholly removed from the intermediate pair of drawing rolls. 7

Any weighting means may be provided to cooperate with the member 9. To this end, I have shown a weight strap 14 positioned by any suitable formation and herein shown as mounted between annular shoulders 15, 16 upon the member 9 and having at its lower end a slot through which is inserted a weight lever 17 pivoted in a loop or bracket 18 mounted upon the frame of the machine and provided at its outer end with a suitable weight 19.

In order to position the weight strap between the shoulders 15,16 and to lock said strap with relation thereto, I provide one at least of said shoulders and said weight strap with interengaging formations or locking means to prevent the accidental displacement of said weight strap. Herein for the purpose I have represented in Fig. 8 the shoulder 16 as provided with a notch or recess 20 and the weight strap as having a projection 21, which, when brought into register, permit the weight strap to be placed between the shoulders 15, 16. Ohviously either one of the shoulders or the weight strap may be provided with the recess and the other part with the projection, and said recess and projection may be provided at any circumferential point as desired.

From the foregoing description, it will be evident that by rotating the member 9 the weight strap is moved toward or from the front drawing rolls, so that it may be accurately positioned out of contact with the two pairs of drawing rolls between which itis mounted. It will also be apparent that I have provided conjoint means for adjusting the weight strap and for Varying the application of pressure to the back saddle.

Moreover, the point of application of pressure to the back saddle may be instantly and readilyvaried. so that the device illustrated is applicable for use in drawing and spinning any count of yarn.

Having thus described one illustrative embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

1. A top roll saddle comprising in combination a front saddle, a back saddle, a member extending from one of said saddles to and overlying the outer saddle, and a pressure varying device sleeved on and adjustable along said member.

2. A top roll saddle comprising in combination a front saddle, a back saddle, a member extending from the front saddle to and overlying the back saddle, and a pressure varying device sleeved on and adjustable along said member. 7

A top roll saddle comprising a front saddle, a back saddle, a member extending from one of said saddles to and along the other saddle, and a pressure varying device sleeved on and adjustable along said memher.

4. A top roll saddle comprising in combination a front saddle, a back saddle, a threaded member extending from one of said saddles to and overlying the other saddle, and a pressure-varying nut adjustable along said member.

5, A top roll saddle comprising in combi nation a front saddle, a back saddle, a threaded member extending from the front saddle to and overlying the back saddle, and a back saddle engaging nut adjustable along said member.

6. A top roll saddle comprising in combination a front saddle, a back saddle, a mem" ber threaded into the front saddle and having a threaded portion overlying said back saddle, and a pressure-applying nut upon said threaded portion. 7

7. A top roll saddle comprising in combination a front saddle, a back saddle, a member threaded into one of said saddles and extending to and along the other saddle, and a device rotatably adjustable along said member. 1

8. A top roll saddle comprising inv combination, a front saddle member and an adjustable rod threaded thereinto and extending rearwardly therefrom, a rear saddle recessed upon its upper surface to receive the threaded rod, a nut upon said rod and supported in said recessed portion of the rear saddle, and a weight strap supported by said die member, an adjustable rod threaded into one of said members and extending therefrom to overlie the other saddle member, and a weight strap confined in position upon said threaded rod and adjustable by rotation of the latter between the drawing rolls.

11. A top roll saddle comprislng in combination a front saddle, a back saddle, a member extending from one of said saddles to and along the other saddle, said member having a spaced pair of weight strap retaining enlargements, a weight strap having an opening to receive said member, said opening being of suflieient size to permit the passage of at least one of said enlargements, such enlargement and the edge of said opening having a cooperating recess and locking projection, which may be brought into register to permit movement of the Weight strap past said enlargement.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN V. CUNNIFF.

WVitnesses.

EUGENE S. SULLIVAN, NICHOLAS HA'rnnwAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

